The Pittsburgh Steelers' Troy Polamalu dives at the Green Bay Packers' Jordy Nelson during the second half of the NFL Super Bowl XLV football game on Sunday, Feb. 6, 2011, in Arlington, Texas. (AP Photo/Charlie Riedel)

Photo by: Charlie Riedel

The Pittsburgh Steelers' Troy Polamalu dives at the Green Bay Packers' Jordy Nelson during the second half of the NFL Super Bowl XLV football game on Sunday, Feb. 6, 2011, in Arlington, Texas. (AP Photo/Charlie Riedel)